National Dam Inspection Program. Peck's Branch Dam (NDI-ID Number MD-23) Patapsco River Basin, Gwynns Run, Baltimore City, Maryland. Phase I Inspection Report,
RUMMEL KELEPPER AND KAHL BALTIMORE MD
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Pecks Branch Dam is the impoundment for wash water discharged from the Ashburton Water Purification Plant. The perimeter of the impoundment is approximately 2050 feet as measured along the fence surrounding the wash water lake. Of the 2050 feet, approximately 1500 feet is an embankment extending above the original ground line. The embankment is approximately 55 feet high at its maximum section along the southern side of the impoundment. The southern and southeastern embankments of the dam were constructed over an existing rock fill embankment. Overflow from the lake is controlled by the drop inlet spillway at the southern end of the lake which discharges into a 9.75 x 10 semi-elliptical drain. The drain discharges directly into Gwynns Run. Based on the visual inspection, available records, past operational performance, and in accordance with the guidelines criteria established for these studies, Pecks Branch Dam is judged to be in poor condition. Except for rainfall on the wash water lake surface and a small amount of surface water runoff from the northern end of the lake, the only inflow into the lake is from the water purification plant, and therefore, flood routing analyses are not required.
- Civil Engineering